User`s guide

70 DC 900-1340I
BSC Programmer’s Guide
Section A.4 on page 197 for more information on virtual device procedures and line
sequence diagrams.
An unsuccessful Change Virtual 3270 Device Status command can return one of the
following error codes in the
dlRead pOptArgs.iICPStatus field (see Appendix D for error
handling):
DLI_ICP_ERR_BAD_MODE
The function request is not available for the requested
access mode.
DLI_ICP_ERR_BAD_PARMS
The parameter value(s) used for the function call are
illegal.